Jims Gold Mine Drilling Yields Multiple Intercepts Above 6 g/t Gold in 2025 Campaign
Tanami Gold NL has reported robust final assay results from its 2025 drilling campaign at the historic Jims Gold Mine, confirming significant extensions of gold mineralisation. A second drilling phase has commenced, aiming to further delineate the resource before the wet season.
- Final assays confirm down-dip and northerly extensions at Jims Gold Mine
- Multiple high-grade gold intercepts including 2m @ 27.48 g/t and 7.3m @ 6.74 g/t
- Second phase drilling of 9 holes (5,200m) underway, results expected early 2026
- Jims is part of the Central Tanami Project Joint Venture between Tanami Gold and Northern Star
- Mount Gibson Iron Limited agreed to acquire Northern Star’s 50% JV interest for A$50 million
Context and Location
Tanami Gold NL (ASX – TAM) has released the final assay results from its 2025 Reverse Circulation Pre-collar/Diamond Core Tail drilling program at the historic Jims Gold Mine, located within the Central Tanami Project in the Northern Territory. Situated approximately 23 kilometres southwest of the Central Tanami Mill, Jims forms a key part of a 50/50 joint venture with Northern Star Resources Limited, focused on advancing exploration across a substantial 2,108 square kilometre tenement package in the remote Tanami region.
Encouraging Drilling Outcomes
The recent drilling campaign was designed to test down-dip and northerly extensions of the Jims Main zone mineralisation, building on successful 2024 results that included exceptional high-grade intercepts. The final assays confirm multiple significant gold intercepts, such as 7.30 metres at 6.74 grams per tonne (g/t) gold from 329.70 metres, 2.00 metres at 27.48 g/t from 212.00 metres, and 13.00 metres at 6.61 g/t from 280.00 metres. These results reinforce the continuity and potential scale of mineralisation at depth and along strike.
Strategic Importance and Joint Venture Developments
The Jims Gold Mine’s mineralisation is hosted within quartz vein breccia lodes along a major regional fault, a geological setting that has historically supported mining activity in the mid-1990s. The recent drilling success elevates Jims’ strategic importance within the Central Tanami Project portfolio. Notably, Mount Gibson Iron Limited announced an agreement to acquire Northern Star’s 50% interest in the joint venture for A$50 million, a transaction that could influence future project development and capital allocation.
Next Steps and Ongoing Exploration
On the back of these positive results, a second phase of drilling has commenced, comprising nine holes for a total of 5,200 metres. This program aims to further delineate the mineralised zones before the onset of the northern Australian wet season, with assay results anticipated in early 2026. Meanwhile, final assay results from other key deposits within the joint venture, including Groundrush, Western Dolerite, and Defa prospects, remain pending and will be released once available.
Technical Assurance and Reporting Standards
The drilling and sampling methodologies adhere to industry best practices, with rigorous quality assurance and quality control protocols in place. Assays were conducted using fire assay techniques with a 50-gram charge, and sampling intervals were carefully defined to honour geological boundaries. The data supports ongoing resource estimation and mining studies, although true widths of mineralised intercepts have yet to be determined.
Bottom Line?
With a promising second drilling phase underway and a major JV ownership change pending, Tanami Gold’s Jims Gold Mine is poised for a pivotal year ahead.
Questions in the middle?
- How will Mount Gibson Iron’s acquisition of the JV interest impact project development and funding?
- What will the upcoming assay results from the second drilling phase reveal about resource scale and grade continuity?
- When will final results from the Groundrush, Western Dolerite, and Defa prospects be released, and how might they affect the overall project valuation?